Height adjustable working platform



FIG. 1 is a first perspective view of the height adjustable workingplatform showing the design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof; and,

FIG. 9 is a third perspective view thereof, wherein the heightadjustable working platform is in a collapsed position.

The broken lines in the drawings depict portions of the heightadjustable working platform that form no part of the claimed design.

CLAIM The ornamental design for the height adjustable working platform,as shown and described.